I'm using Leaflet to draw a map, within the popups I've added a link that should lead to a more detailed description, the description is separated from map and arranged into list using an accordion, so every description is hidden.
I can use an anchor to link to the accordion content, but I need to execute some JavaScript onclick so I am trying to add a click event handler - its not working.
Here is my code:
<!DOCTYPE html>
<html>
<head>
<title>Leaflet Quick Start Guide Example</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--<script src="http://leaflet.cloudmade.com/dist/leaflet.js"></script>-->
<script src="http://code.jquery.com/jquery.min.js" type="text/javascript"></script>
<link rel="stylesheet" href="http://code.leafletjs.com/leaflet-0.3.1/leaflet.css" />
<!--[if lte IE 8]><link rel="stylesheet" href="http://code.leafletjs.com/leaflet-0.3.1/leaflet.ie.css" /><![endif]-->
</head>
<body>
<div id="map" style="width: 600px; height: 400px"></div>
<div id="log"></div>
<div id="map_box_text" class="status_half">
<br>
<br>
<p>List made using JQuery UI accordion, every element is hidden, only on hover it opens, you can click on it to display on map, reverse cliking on map should aopen accordion list description (this), it's currently done using permalinks because I cannot catch click event on a or span tag.
<div class="accordion">
<h4> Ioff :: **** ***</h4>
<div>Detailed data</div>
<br>
<br>
<h4>Us sb :: **** *** </h4>
<div>Detailed data</div>
<br>
<br>
<h4>Ioff :: **** ***</h4>
<div>Detailed data</div>
<br>
<br>
<h4>Us sb :: **** *** </h4>
<div>Detailed data</div>
</div>
</div>
<script src="http://leaflet.cloudmade.com/dist/leaflet.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var map = new L.Map('map', {
center: new L.LatLng(51.641485,-0.15362),
zoom: 13
});
var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/a0ead8ee56bd415896e0c7f7d22e8b6e/997/256/{z}/{x}/{y}.png',
cloudmadeAttrib = 'Map data © 2011 OpenStreetMap contributors',
cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttrib});
map.addLayer(cloudmade);
var point = {};
point["point_111_11"] = new L.Marker(new L.LatLng(51.4800166666667,-0.43673)).bindPopup("Ioff <br>**** ***");
point["point_222_22"] = new L.Marker(new L.LatLng(51.6616333333333,-0.0528583333333333)).bindPopup("Us sb <br>**** ***");
point["point_333_33"] = new L.Marker(new L.LatLng(52.3910783333333,-0.696951666666667)).bindPopup("Ioff <br>**** ***");
point["point_555_44"] = new L.Marker(new L.LatLng(51.641485,-0.15362)).bindPopup("Us sb <br>**** ***");
var points_layer = new L.LayerGroup();
points_layer.addLayer(point["point_111_11"]);
points_layer.addLayer(point["point_222_22"]);
points_layer.addLayer(point["point_333_33"]);
points_layer.addLayer(point["point_555_44"]);
map.addLayer(points_layer);
$('.pointpopup').click(function(){
var pointname = this.id;
map.setView(point[pointname].getLatLng(),15);
point[pointname].openPopup();
});
});
$(window).load(function(){
$("body").click(function(event) {
//console.log('event target is:' + event.target.nodeName);
$("#log").html("clicked: " + event.target.nodeName);
});
$('.map_popup').live('click',function () {
//$('.map_popup').click(function(){
alert('Try to open Accordion ' + $(this).attr('href'))
//console.log('Try to open Accordion');
})
})
</script>
</body>
</html>
you can check it on JS Fiddle
I've reported this as a bug on github to developer of Leaflet here and here but he close bug replying that it's not a issue and I can use another class - which doesn't work.
Edit:
I've found some on my own too: http://jsfiddle.net/M5Ntr/12/
But there is still a problem, potentially there can be a 500 points, so I would like to have as less code as possible, I've tried to create function but I cannot pass variables :(
this is working
point["point_111_11"] = new L.Marker(new L.LatLng(51.4800166666667,-0.43673)).bindPopup("<b>Ioff</b> <br>**** ***").on('click', function (e) { console.log("clicked (Try to open Accordion): " + e.target) });
but this is preferable (not working):
point["point_111_11"] = new L.Marker(new L.LatLng(51.4800166666667,-0.43673)).bindPopup("<b>Ioff</b> <br>**** ***").on('click', myfunction('point_111_11'));
function myfunction(seclectedId){
//do something with seclectedId
console.log(seclectedId)
}
or even
point["point_111_11"] = new L.Marker(new L.LatLng(51.4800166666667,-0.43673)).bindPopup("<b>Ioff</b> <br>**** ***").myBindFunction('point_111_11')
which will do .on('click') or something similar inside ...
As specified in the ticket you raised you can create DOM elements and pass them to the bindPopup method ... so you can do this :
var domelem = document.createElement('a');
domelem.href = "#point_555_444";
domelem.innerHTML = "Click me";
domelem.onclick = function() {
alert(this.href);
// do whatever else you want to do - open accordion etc
};
point["point_555_44"] = new L.Marker(new L.LatLng(51.641485, -0.15362)).bindPopup(domelem);
You just need to update the onclick function to do what you need it to do ....
Here is the above section of code within your example
Related
I'm trying to embed a Google Maps web view inside a PyQt5 Window. But the map is rendered correctly in plain HTML but throws an error while rendering in Python. I tried running the code separately in plain HTML and inside a PyQt5 Web view.
My HTML code is following
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>Google Maps - gmplot</title>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=visualization&key=MY_KEY"></script>
<script type="text/javascript">
function initialize() {
var map = new google.maps.Map(document.getElementById("map_canvas"), {
zoom: 18,
center: new google.maps.LatLng(12.980700, 80.188200)
});
var marker_icon_FF0000 = {
url: "data:image/png;base64,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",
labelOrigin: new google.maps.Point(10, 11)
};
new google.maps.Marker({
position: new google.maps.LatLng(12.980700, 80.188200),
icon: marker_icon_FF0000,
map: map
});
}
</script>
</head>
<body style="margin:0px; padding:0px;" onload="initialize()">
<div id="map_canvas" style="width: 100%; height: 100%;" />
</body>
</html>
This works fine but when I try to run this code inside a PyQt5 WebView Widget like following
# app.py
import gmplot
import sys
import os
from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets
class Browser(QtWebEngineWidgets.QWebEngineView):
def __init__(self):
super().__init__()
html = """
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>Google Maps - gmplot</title>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=visualization&key=MY_KEY"></script>
<script type="text/javascript">
function initialize() {
var map = new google.maps.Map(document.getElementById("map_canvas"), {
zoom: 18,
center: new google.maps.LatLng(12.980700, 80.188200)
});
var marker_icon_FF0000 = {
url: "data:image/png;base64,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",
labelOrigin: new google.maps.Point(10, 11)
};
new google.maps.Marker({
position: new google.maps.LatLng(12.980700, 80.188200),
icon: marker_icon_FF0000,
map: map
});
}
</script>
</head>
<body style="margin:0px; padding:0px;" onload="initialize()">
<div id="map_canvas" style="width: 100%; height: 100%;" />
</body>
</html>
"""
here = os.path.dirname(os.path.abspath(__file__)).replace('\\', '/')
base_path = os.path.join(os.path.dirname(here), 'dummy').replace('\\', '/')
self.url = QtCore.QUrl('file:///' + 'map.html')
self.page().setHtml(html, baseUrl=self.url)
class MainWindow(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
self.init_widgets()
self.init_layout()
def init_widgets(self):
self.browser = Browser()
self.browser.loadFinished.connect(self.load_finished)
def init_layout(self):
layout = QtWidgets.QVBoxLayout()
layout.addWidget(self.browser)
centralWidget = QtWidgets.QWidget()
centralWidget.setLayout(layout)
self.setCentralWidget(centralWidget)
def load_finished(self, status):
self.msg = QtWidgets.QMessageBox()
self.msg.setIcon(QtWidgets.QMessageBox.Information)
self.msg.setWindowTitle('Load Status')
self.msg.setText(f"It is {str(status)} that the page loaded.")
self.msg.show()
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
main_window = MainWindow()
main_window.show()
sys.exit(app.exec_())
I get this error on the console saying "js: You must enable Billing on the Google Cloud Project at https://console.cloud.google.com/project/_/billing/enable Learn more at https://developers.google.com/maps/gmp-get-started"
I mean why is it working in plain HTML file and not in the web view.
Screenshots -
(Running inside PyQT Widget)
(Running inside Browser as HTML)
Well first of all - do make sure that you billing account at google maps is enabled and this should solve your problem :)
besides that I must say that I have also played with google maps a little and it is a riddle for me. Sometimes it works without user's credential at all and sometimes not. No idea why the difference.
But really enabling paying is safe, unless you have thousands of API calls you won't get billed. Just do it and move forward.
This is what I would do.
I have created a sample app to load google maps in windows phone 8.1. Using the webview approch I'm not able to launch google maps, please help me in fixing this.. Below is the code:
default.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Maps</title>
<!-- WinJS references -->
<!-- At runtime, ui-themed.css resolves to ui-themed.theme-light.css or ui-themed.theme-dark.css
based on the user’s theme setting. This is part of the MRT resource loading functionality. -->
<link href="/css/ui-themed.css" rel="stylesheet" />
<script src="//Microsoft.Phone.WinJS.2.1/js/base.js"></script>
<script src="//Microsoft.Phone.WinJS.2.1/js/ui.js"></script>
<!-- Maps references -->
<link href="/css/default.css" rel="stylesheet" />
<script src="/js/default.js"></script>
</head>
<body>
<h1>Google Maps API on Windows phone 8.1</h1>
<x-ms-webview id="Map" src="ms-appx-web:///map.html" style="width:500px;height:500px;"></x-ms-webview>
</body>
</html>
maps.html:
<!DOCTYPE html>
<html>
<head>
<title></title>
<script src="//Microsoft.Phone.WinJS.2.1/js/base.js"></script>
<script src="//Microsoft.Phone.WinJS.2.1/js/ui.js"></script>
<!-- map references -->
<link href="/map.css" rel="stylesheet" />
<script src="http://maps.googleapis.com/maps/api/js?sensor=false&callback=initialize"></script>
<script src="/map.js"></script>
</head>
<body>
<div id="mapdisplay" height="500px" width="500px"></div>
</body>
</html>
maps.js:
var map;
var dataResults;
function initialize() {
map = new google.maps.Map(document.getElementById('mapdisplay'), {
zoom: 3,
center: new google.maps.LatLng(40, -187.3),
mapTypeId: google.maps.MapTypeId.TERRAIN
});
addMarkers();
}
eqfeed_callback = function (results) {
dataResults = results;
}
function addMarkers() {
for (var i = 0; i < dataResults.features.length; i++) {
var quake = dataResults.features[i];
var coors = quake.geometry.coordinates;
var latLong = new google.maps.LatLng(coors[1], coors[0]);
var marker = new google.maps.Marker({
position: latLong,
map: map
//icon: getCircle(earthquake.properties.mag)
});
}
}
function getCircle(magnitude) {
return {
path: google.maps.SymbolPath.CIRCLE,
fillColor: 'red',
fillOpacity: .2,
scale: Math.pow(2, magnitude) / Math.PI,
strokeColor: 'white',
strokeWeight: .5
};
}
What's the mistake I'm doing in the above code, please let me know..
"maps.html" does not work because of multiple synchronicity issues.
Load maps.js beforehttp://maps.googleapis.com/maps/api/js so initialise is defined,
Load http://maps.googleapis.com/maps/api/jsand after the HTML has been parsed so the mapdisplay element exists when initialise is called.
Call addMarkers from eqfeed_callback not initialise so dataResults has been set with valid object data.
Most of this could have been found out by opening the developers console and checking it for errors when viewing "maps.html" in a desktop browser. You may also like to research other questions on the topic and/or check the api documentation for working examples - and notice how the api documentation uses defer and async attributes on the script tag to make sure it doesn't execute until after the page has been parsed.
Hi I have this html with some content and a map, using Leaflet api for map rendering (jsfiddle) This whole content is part of a modal panel which open on a button click after user input some data. I want to export all content into a pdf with some client side solution.
I have tried jspdf like but it does not works. tried combination of canvastohtml and jspdf like but could not able to make it work either. Point to mentione here is my content contains map which export jspdf doesn't support
Anyone knows a solution, please share. I have included the code below
PS: Using phamtomjs screenshot utilities is not an option
<script src="https://npmcdn.com/leaflet#1.0.0-rc.3/dist/leaflet.js"></script>
<link href="https://npmcdn.com/leaflet#1.0.0-rc.3/dist/leaflet.css" rel="stylesheet" />
<body>
<script>
function createMap(mapPlaceHolderId) {
var OSM_MAP_TILE_SERVER_URL = 'http://{s}.tile.openstreetmap.se/hydda/full/{z}/{x}/{y}.png';
var DEFAULT_MAP_CENTER = L.latLng(25.296854389343867, 51.48811340332031);
var DEFAULT_MAP_ZOOM = 12;
var MAP_ZOOM_MAX = 19;
var MAP_ZOOM_SEARCH = 17;
var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib = 'Map data © OpenStreetMap contributors';
var osm = new L.TileLayer(osmUrl, {
minZoom: 8,
maxZoom: 12,
attribution: osmAttrib
});
var map = L.map(mapPlaceHolderId).setView([51.505, -0.09], 13);
map.addLayer(osm);
return map;
}
</script>
<div id="vrSubReportContainer">
<div class="mapPopupTableContainer">
<div class="mapPopupTableData"><b>Plate Number:</b> 009-001GL-297286, <b>Driver Name:</b> Unknown driver
<br><b>Latitude,Longitude</b>: 25.215238,51.605439</div>
</div>
<div id="mapContainer" class="map-container">
<div class="map" id="fd_map_canvas"></div>
</div>
</div>
<script>
(function() {
createMap('fd_map_canvas');
})();
</script>
</body>
I´m trying to apply the Leaflet.MarkerCluster.LayerSupport. But I don´t know how to use it :( I´ve already read the documentation about but and I tried many times but it doesen´t work.
This is my code
<!DOCTYPE html>
<html>
<head>
<title>Península</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.css" />
</head>
<body>
<div id="map" style="width: 600px; height: 400px"></div>
<script src="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.js"></script>
<script src='https://api.mapbox.com/mapbox.js/plugins/leaflet-markercluster/v0.4.0/leaflet.markercluster.js'></script>
<script src="leaflet.markercluster.layersupport-src.js"></script>
<script>
var NemachIcons =L.Icon.extend({
options:{
shadowUrl:'',
iconSize: [50,55],
iconAnchor: [45,45],
popupAnchor:[-3,-76]
}
});
var tiloIcon = new NemachIcons({iconUrl:'http://www.iconshock.com/img_jpg/SIGMA/general/jpg/256/pyramid_icon.jpg'}),
puebloIcon = new NemachIcons({iconUrl:'http://icons.iconseeker.com/png/fullsize/gant/pointless-bw-circle-i-use-it-iex.png'}),
gasIcon =new NemachIcons({iconUrl:'https://cdn2.iconfinder.com/data/icons/function_icon_set/circle_green.png'});
L.icon =function (options) {
return new L.Icon(options);
};
var sitios = new L. LayerGroup();
L.marker([20.683, -88.568], {icon: tiloIcon}).bindPopup('1').addTo(sitios),
L.marker([21.204547, -89.269466], {icon: tiloIcon}).bindPopup('2').addTo(sitios),
L.marker([20.332362, -89.647899], {icon: tiloIcon}).bindPopup('3').addTo(sitios),
L.marker([20.486417, -88.660218], {icon: tiloIcon}).bindPopup('4').addTo(sitios),
L.marker([21.151196, -87.958143], {icon: tiloIcon}).bindPopup('5').addTo(sitios);
var pueblo = new L.LayerGroup();
L.marker([20.9330, -89.0178], {icon: puebloIcon}).bindPopup('6').addTo(pueblo),
L.marker([20.6909, -88.2015], {icon: puebloIcon}).bindPopup('7').addTo(pueblo);
var gas = new L.LayerGroup();
L.marker([20.973907, -89.578931], {icon: gasIcon}).bindPopup('8').addTo(gas);
var mbAttr = ' ' +
'' +
'',
mbUrl = 'https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpandmbXliNDBjZWd2M2x6bDk3c2ZtOTkifQ._QA7i5Mpkd_m30IGElHziw';
var grayscale = L.tileLayer(mbUrl, {id: 'mapbox.light', attribution: mbAttr}),
streets = L.tileLayer(mbUrl, {id: 'mapbox.streets', attribution: mbAttr});
var map = L.map('map', {
center: [20.794527, -88.760612],
zoom: 8,
layers: [grayscale, sitios]
});
var baseLayers = {
//"Grayscale": grayscale,
//"Streets": streets
};
var overlays = {
"Pirámide": sitios,
"Poblado": pueblo,
"Servicio": gas
};
L.control.layers(baseLayers, overlays).addTo(map);
</script>
</body>
</html>
I´ll appreciate all your answers
Like for Leaflet.markercluster, you have to create a Marker Cluster Group where your sub-groups will go into.
In the case of Layer Support, you create a Marker Cluster Group with Layer Support instead:
var mcg = L.markerClusterGroup.layerSupport().addTo(map);
Then you "check in" the sub-groups, so that they know they have to go into that clustering group rather than directly to the map, when they are selected through the Layers Control:
mcg.checkIn([
sitios,
pueblo,
gas
]);
Demo: http://plnkr.co/edit/CT3E63AKWze34FqUoiHn?p=preview
Note: you should download the JavaScript file leaflet.markercluster.layersupport-src.js, if not already done, and place it next to your HTML page, so that it can refer to it locally.
Note 2: if your usage requires only compatibility of clustering with L.Control.Layers, you might be interested in this more simple plugin: Leaflet.FeatureGroup.SubGroup.
Disclaimer: I am the author of these plugins.
I have a form and I want to add a "select location" option.
How can I do this, and how can I place a pin as the selected location?
You may want to consider using the Google Maps API, as davek already suggested.
The following example may help you getting started. All you would need to do is to change the JavaScript variable userLocation with the location chosen by your users from the drop-down field you mention.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps API Demo</title>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false"
type="text/javascript"></script>
</head>
<body onunload="GUnload()">
<div id="map_canvas" style="width: 400px; height: 300px"></div>
<script type="text/javascript">
var userLocation = 'London, UK';
if (GBrowserIsCompatible()) {
var geocoder = new GClientGeocoder();
geocoder.getLocations(userLocation, function (locations) {
if (locations.Placemark)
{
var north = locations.Placemark[0].ExtendedData.LatLonBox.north;
var south = locations.Placemark[0].ExtendedData.LatLonBox.south;
var east = locations.Placemark[0].ExtendedData.LatLonBox.east;
var west = locations.Placemark[0].ExtendedData.LatLonBox.west;
var bounds = new GLatLngBounds(new GLatLng(south, west),
new GLatLng(north, east));
var map = new GMap2(document.getElementById("map_canvas"));
map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));
map.addOverlay(new GMarker(bounds.getCenter()));
}
});
}
</script>
</body>
</html>
The above example would render a map like the one below:
The map will not show if the Google Client-side Geocoder cannot retreive the coordinates from the address.
Check out the Google Maps API. There's lots of information there and several examples:without knowing more about your environment/requirements it is difficult to be more specific.